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Fuel tank liner gone wrong
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TonUpTurner
Warwick
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September 13, 2020 - 10:35 pm
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Hi all,

During restoration roughly 5-6 years ago I lined my fuel tank with a Frost POR-15 tank repair kit - I've come back to this project & took a peek inside the fuel tank to check the condition & noticed it's all lifted underneath the filler neck. It's never had fuel in so I must've cocked up with the lining process.

Question is. Do I just strip it with ** Please log in to view ** & try again with a liner or just leave unstripped & make sure it's always full of fuel?

 

20200910_071315.jpg

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cocorico
Central France
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September 14, 2020 - 7:27 am
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If you lined it because it was porous you probably need to strip and reline (there are plenty of posts about that on the forum, as well as the web). If you relined it 'as a good idea' it is your decision. Personally, if the tank is leak free and clean I'd leave it bare. I don't agree with keeping the tank full, either. Petroil contains some moisture anyway and ethanol is hygroscopic, so over time water will separate out and sit in the seams at the bottom of the tank. OK if the bike is in constant use and the fuel topped up regularly, but for occasional use it's better to drain the tank between runs.

That's my opinion anyway.

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TonUpTurner
Warwick
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September 14, 2020 - 10:06 am
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cocorico said
If you lined it because it was porous you probably need to strip and reline (there are plenty of posts about that on the forum, as well as the web). If you relined it 'as a good idea' it is your decision. Personally, if the tank is leak free and clean I'd leave it bare. I don't agree with keeping the tank full, either. Petroil contains some moisture anyway and ethanol is hygroscopic, so over time water will separate out and sit in the seams at the bottom of the tank. OK if the bike is in constant use and the fuel topped up regularly, but for occasional use it's better to drain the tank between runs.

That's my opinion anyway.  

The tank was empty when I pulled the bike out from the back of my grandad's garage all those years ago so I had no reason to seal it other than naivety!

Either way the lining has got to come out as I don't want to end up blocking fuel filters or the carb if & when it starts lifting more. I can assess the situation once it's stripped.

Cheers Coco.

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